It's simple:
  • download SDE: http://www.archos.com/support/downlo...droid_gen8.aos
  • download the custom kernel from the thread mentioned above
  • reboot archos device and hold down "Vol-" button after screen went black
  • choose "Update firmware"
  • connect your archos device by usb to your computer
  • upload the firmware file to your device
  • safely disconnect the usb connection
  • press ok on archos device
  • reboot and hold down "Vol-" button after screen went black
  • Go to recovery menu and choose flash kernel / initramfs.cpio.gz
  • connect your archos device by usb to your computer
  • upload zImage and initramfs.cpio.gz to your device
  • safely disconnect the usb connection
  • press ok on archos device
  • reboot and hold down "Vol-" button after screen went black
  • choose "Developer Edition"
  • ...
  • run terminal app
  • type "su"
  • have fun...